Keep Key Pressed

[Jean]

Hello, I´m a new user to C# and I have a question.
How to make my application emulate a key pressed? Not just the key press,
but keep the key pressed?
For example, let´s say that I want to emulate the 'A' key:
-I click in a button.
-Then, the program focus a field textbox on my Form and in this field, the
string AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA start appear after the
focus.
-When I click in another button, the 'A' key is released.

I try to use some methods like SendKeys, SendMessage and even a old windows
Api keybd_event, but don´t have success.
Anyone can help me?

tks!

 

[kimiraikkonen]

Hello, I´m a new user to C# and I have a question.
How to make my application emulate a key pressed? Not just the key press,
but keep the key pressed?
For example, let´s say that I want to emulate the 'A' key:
-I click in a button.
-Then, the program focus a field textbox on my Form and in this field, the
string AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA start appear after the
focus.
-When I click in another button, the 'A' key is released.

I try to use some methods like SendKeys, SendMessage and even a old windows
Api keybd_event, but don´t have success.
Anyone can help me?

tks!

First, focus on textbox using textBox1.Focus();
Then, you can try SendKeys with Timer control. Timer will iterate
SendKeys method's keypress within specified interval in that case.

....or just let Timer generate "A"s for you like:
(in timer's tick event):

textBox1.Text = textBox1.Text & "A"

HTH,

Onur Güzel

 

[kimiraikkonen]

First, focus on textbox using textBox1.Focus();
Then, you can try SendKeys with Timer control. Timer will iterate
SendKeys method's keypress within specified interval in that case.

Sorry, i need to update. That works as follows:

private void timer1_Tick(object sender, EventArgs e)
{
textBox1.Focus();
SendKeys.Send("{A}");
}

...or just let Timer generate "A"s for you like:
(in timer's tick event):

textBox1.Text = textBox1.Text & "A"

Sorry, correcting the syntax:
private void timer1_Tick(object sender, EventArgs e)
{
textBox1.Focus();
textBox1.Text = textBox1.Text + "A";
}


HTH,

Onur Güzel